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ARB RD113 Air Locker Locking Differential

(Jeep Wrangler 1997-2006, TJ 1997-2006; Mercedes-Benz C230 2002-07, C350 2006-07, C320 2001-05, C280 2006-07, C240 2001-05, C55 AMG 2005-06, C32 AMG 2002-04)

Part of: ARB Air Locker Locking Differential

Other options in this family: ARB RD132 ARB RD101 ARB RD142 ARB RD90 ARB RD139

Manufacturer

Picture for manufacturer ARB

Part Number

RD113
10 reviews
Sale Price

$1,299.95

2 left at this price

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Usually delivered within 2 days

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Product Details

The ARB RD113 Air Locker is a pneumatically-activated locking differential designed to provide maximum traction in challenging off-road conditions. When engaged, the Air Locker mechanically locks the differential, forcing both wheels on an axle to turn at the same speed regardless of available traction. This ensures power is delivered to both wheels equally, preventing wheel spin and keeping you moving through mud, sand, rock, and steep terrain.

Key Features:

  • On-demand activation—engage only when you need it, maintaining normal street driving characteristics when unlocked
  • Pneumatic operation provides reliable, durable performance in extreme conditions
  • Heavy-duty forged steel internals engineered for maximum strength and longevity
  • Complete installation kit includes differential assembly, dash-mounted activation switch, air compressor solenoid valve, air line, and bulkhead fittings
  • Compatible with vehicles equipped with air compressor systems or ARB's onboard air systems

ARB Air Lockers are widely recognized as the gold standard in selectable locking differentials, trusted by serious off-road enthusiasts and professional expedition vehicles worldwide. Unlike limited-slip or automatic locking differentials, the Air Locker gives you complete control over when to engage full traction, making it ideal for both daily driving and extreme off-road use.

Products specifications

Fits

Jeep Wrangler 1997-2006, TJ 1997-2006; Mercedes-Benz C230 2002-07, C350 2006-07, C320 2001-05, C280 2006-07, C240 2001-05, C55 AMG 2005-06, C32 AMG 2002-04

Prop 65

No

Fitment Info 1

Axle: Dana 44; Position: Rear; Shaft: 1.31 in; Spline: 33; Ratio: 3.92 Up

Color

Silver

Material

Steel

Thanks!

I have no complaints. The website was easy to navigate and checkout was a breeze. Delivery time was about what I expected.

good

Well macanic not got back..... But will let ya know

First time to order .

Ordered a sling to store my roof rack. There was an issue with the supplier which was quickly resolved by the Autoplicity staff. Great customer service -- most responsive I've ever seen.<br><br>Best prices around.

I'd like to make sure if they are all original Bosch and

Great service. Shipped out the day after I ordered it...plus it was the cheapest of the competition.

I bought a Motive pressure brake bleeder from Autoplicity. I have been looking around for different prices for quite a while, and their price, even with shipping cost, was the lowest. After ordering, I received a notification of shipment and tracking number. The item arrived well packaged, complete, and intact within a few days. I am looking forward to using it.

Easy and fast. Order arrived very fast. Thanks.

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